1133431442 has 24 divisors (see below), whose sum is σ = 2012512908. Its totient is φ = 475564320.

The previous prime is 1133431417. The next prime is 1133431469. The reversal of 1133431442 is 2441343311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1089726121 + 43705321 = 33011^2 + 6611^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176993 + ... + 183284.

Almost surely, 2^1133431442 is an apocalyptic number.

1133431442 is a deficient number, since it is larger than the sum of its proper divisors (879081466).

1133431442 is a wasteful number, since it uses less digits than its factorization.

1133431442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360314 (or 360303 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 1133431442 is about 33666.4735605023. The cubic root of 1133431442 is about 1042.6336854288.

Adding to 1133431442 its reverse (2441343311), we get a palindrome (3574774753).

The spelling of 1133431442 in words is "one billion, one hundred thirty-three million, four hundred thirty-one thousand, four hundred forty-two".